ZyXEL Communications NWD-270N User Manual
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ZyXEL Communications NWD-270N User Manual

Wireless n-lite usb adapter
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NWD-270N
Wireless N-lite USB Adapter
User's Guide
Version 1.0
07/2009
Edition 1
www.zyxel.com

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Summary of Contents for ZyXEL Communications NWD-270N

  • Page 1 NWD-270N Wireless N-lite USB Adapter User’s Guide Version 1.0 07/2009 Edition 1 www.zyxel.com...

  • Page 3: About This User's Guide

    About This User's Guide About This User's Guide Intended Audience This manual is intended for people who want to configure the NWD-270N using the ZyXEL utility. You should have at least a basic knowledge of TCP/IP networking concepts and topology.

  • Page 4: Document Conventions

    Syntax Conventions • The NWD-270N may be referred to as the “NWD-270N”, the “device”, the “system” or the “product” in this User’s Guide. • Product labels, screen names, field labels and field choices are all in bold font.
  • Page 5 Document Conventions Icons Used in Figures Figures in this User’s Guide may use the following generic icons. Wireless Access Point Computer Notebook computer Server Modem Telephone Internet Wireless Signal NWD-270N User’s Guide...

  • Page 6: Safety Warnings

    • ONLY qualified service personnel should service or disassemble this device. • Antenna Warning! This device meets ETSI and FCC certification requirements when using the included antenna(s). Only use the included antenna(s). This product is recyclable. Dispose of it properly. NWD-270N User’s Guide...

  • Page 7: Table Of Contents

    Getting Started ........................... 15 Tutorial ............................21 Wireless LANs ........................... 31 Station Mode ..........................43 AP Mode ............................ 65 Maintenance ..........................75 Troubleshooting and Specifications ..................79 Troubleshooting ......................... 81 Product Specifications ....................... 85 Appendices and Index ......................89 NWD-270N User’s Guide...
  • Page 8 Contents Overview NWD-270N User’s Guide...

  • Page 9: Table Of Contents

    Getting Started ........................15 1.1 Overview ..........................15 1.1.1 What You Need to Know .................... 15 1.1.2 Before You Begin ....................... 15 1.2 About Your NWD-270N ...................... 16 1.2.1 Hardware ........................16 1.3 Application Overview ......................17 1.3.1 Infrastructure ......................17 1.3.2 Ad-Hoc ........................
  • Page 10 Table of Contents 2.3.1 Manually Connecting to a Wireless LAN ..............25 2.3.2 Creating and Using a Profile ..................27 2.4 Configuring the NWD-270N as an AP ................. 29 Chapter 3 Wireless LANs......................... 31 3.1 Overview ..........................31 3.1.1 What You Can Do in This Section ................31 3.1.2 What You Need to Know ....................
  • Page 11 7.4 Problems Communicating with Other Computers ............... 82 Chapter 8 Product Specifications ......................85 Part III: Appendices and Index.............. 89 Appendix A Wireless LANs ....................91 Appendix B Windows Wireless Management............... 105 Appendix C Legal Information ....................127 Appendix D Customer Support..................... 131 NWD-270N User’s Guide...
  • Page 12 Table of Contents Index............................137 NWD-270N User’s Guide...

  • Page 13: Introduction And Configuration

    Introduction and Configuration Getting Started (15) Tutorial (21) Wireless LANs (31) Station Mode (43) AP Mode (65) Maintenance (75)

  • Page 15: Getting Started

    Getting Started 1.1 Overview The ZyXEL NWD-270N Wireless N-lite USB Adapter adapter brings you a better Internet experience over existing 802.11 networks. With data rates of up to 150 Mbps, you can enjoy a breathtaking high-speed connection at home or in the office. It is an excellent solution for daily activities such as file transfers, music downloading, video streaming and online gaming.

  • Page 16: About Your Nwd-270N

    Setup) compliant. WPS allows you to easily connect to another WPS-enabled device. The NWD-270N is a USB adapter which connects to an empty USB port on your computer. See your NWD-270N’s Quick Start Guide for installation instructions, and see the section on product specifications in this User’s Guide for detailed information.

  • Page 17: Application Overview

    Infrastructure and connect to an AP or use Ad-Hoc mode and connect to a peer computer (another wireless device in Ad-Hoc mode). 1.3.1 Infrastructure To connect to a network via an access point (AP), set the NWD-270N network type to Infrastructure (see Chapter 4 on page 53).

  • Page 18: Hardware And Utility Installation

    After you install and start the ZyXEL utility, an icon for the ZyXEL utility appears in the system tray. The ZyXEL utility system tray icon displays only when the NWD-270N is installed properly. When you use the ZyXEL utility, it automatically disables Wireless Zero Configuration (WZC) in Windows XP.

  • Page 19: Configuration Methods

    Chapter 1 Getting Started The color of the ZyXEL utility system tray icon indicates the status of the NWD-270N. Refer to the following table for details. Table 3 ZyXEL Utility: System Tray Icon COLOR DESCRIPTION The NWD-270N is not connected to a wireless network.

  • Page 20: Accessing The Zyxel Utility

    The ZyXEL utility screens are similar in all Microsoft Windows versions. Screens for Windows XP are shown in this User’s Guide. Click the icon (located in the top right corner) to display the online help window. NWD-270N User’s Guide...

  • Page 21: Tutorial

    • Save a your settings so that you can later connect again to an infrastructure AP with a single click. See Section 2.3.2 on page 27 for details. • Configure your NWD-270N as an Access Point (AP), allowing other devices to connect to it and share its network connections. See Section 2.4 on page 29 for details.

  • Page 22: Before You Begin

    It doesn’t matter which button is pressed first. You must press the second button within two minutes of pressing the first one. The AP sends the proper configuration settings to the NWD-270N. This may take up to two minutes. Then the NWD-270N is able to communicate with the AP securely.

  • Page 23: Pin Configuration

    When you use the PIN configuration method, you need to use both the NWD-270N’s utility and the AP’s configuration interface. 1 In the NWD-270N’s Adaptor tab, select WPS and PIN - Use this Device’s PIN. Note down the PIN in the screen that appears.
  • Page 24 Chapter 2 Tutorial Figure 8 Example WPS Process: PIN Method WITHIN 2 MINUTES Authentication by PIN SECURITY INFO COMMUNICATION NWD-270N User’s Guide...

  • Page 25: Connecting To An Ap Without Using Wps

    Chapter 2 Tutorial 2.3 Connecting to an AP Without Using WPS There are three ways to connect the wireless client (the NWD-270N) to a network without using WPS. • Configure nothing and leave the wireless client to automatically scan for and connect to any available network that has no wireless security configured.
  • Page 26 URL of any other web site in the address bar. If you are able to access the web site, your wireless connection is successfully configured. If you cannot access the web site, check the NWD-270N User’s Guide...

  • Page 27: Creating And Using A Profile

    Infrastructure and either manually enter or select the AP's SSID in the Scan Info table and click Select. 4 Choose the same encryption method as the AP to which you want to connect (In this example, WPA-PSK). NWD-270N User’s Guide...
  • Page 28 7 Click Activate Now to use the new profile immediately. Otherwise, click the Activate Later button to go back to the Profile List screen. If you clicked Activate Later you can select the profile from the list in the Profile screen and click Connect to activate it. NWD-270N User’s Guide...

  • Page 29: Configuring The Nwd-270N As An Ap

    Troubleshooting section of this User's Guide or contact your network administrator if necessary. 2.4 Configuring the NWD-270N as an AP In access point mode, your NWD-270N allows you to set up your wireless network without using a dedicated AP. See Chapter 5 on page 65 for more information.
  • Page 30 Link Info screen displays. Figure 19 ZyXEL Utility - AP Mode 2 Under Status, you can view the current settings on the NWD-270N. In the Association List, you can see if any wireless clients have connected to your NWD-270N. Figure 20 ZyXEL Utility - AP Mode: Link Info 3 If you want to change the access point’s SSID and enable wireless security for your...

  • Page 31: Wireless Lans

    Encryption The process of taking data and encoding it, usually using a mathematical formula, so that it becomes unreadable unless decrypted with the proper code or pass phrase. NWD-270N User’s Guide...

  • Page 32: Before You Begin

    • Every device in the same wireless network must use security compatible with the AP or peer computer. Security stops unauthorized devices from using the wireless network. It can also protect the information that is sent in the wireless network. NWD-270N User’s Guide...

  • Page 33: Wireless Lan Security

    Settings screen of the ZyXEL utility and entering them manually as the WEP keys in the other WLAN adapter(s). • Enter the WEP keys manually. Your NWD-270N allows you to configure up to four 64-bit or 128-bit WEP keys. Only one key is used as the default key at any one time. 3.3.1.1.2 Authentication Type The IEEE 802.11b/g standard describes a simple authentication method between the wireless...
  • Page 34 AP or peer computer. • Auto authentication mode allows the NWD-270N to switch between the open system and shared key modes automatically. Use the auto mode if you do not know the authentication mode of the other wireless stations.

  • Page 35: Wifi Protected Setup

    WPA or WPA2. 3.4 WiFi Protected Setup Your NWD-270N supports WiFi Protected Setup (WPS), which is an easy way to set up a secure wireless network. WPS is an industry standard specification, defined by the WiFi Alliance.

  • Page 36: Pin Configuration

    3 Look for the client’s WPS PIN; it will be displayed either on the device, or in the WPS section of the client’s configuration interface (see the device’s User’s Guide for how to find the WPS PIN - for the NWD-270N, see Section 4.6 on page 58).

  • Page 37: How Wps Works

    (SSID) and the WPA-PSK or WPA2-PSK pre-shared key to the enrollee. Whether WPA-PSK or WPA2-PSK is used depends on the standards supported by the devices. If the registrar is already part of a network, it sends the existing information. If not, it generates the SSID and WPA(2)-PSK randomly. NWD-270N User’s Guide...
  • Page 38 It will be the registrar in all subsequent WPS connections in which it is involved. If you want a configured AP to act as an enrollee, you must reset it to its factory defaults. NWD-270N User’s Guide...
  • Page 39 (it already has security information for the network). AP1 supplies the existing security information to Client 2. Figure 26 WPS: Example Network Step 2 REGISTRAR EXISTING CONNECTION CLIENT 1 ENROLLEE CLIENT 2 NWD-270N User’s Guide...

  • Page 40: Limitations Of Wps

    (if the device supports this feature). Then, you can enter the key into the non-WPS device and join the network as normal (the non-WPS device must also support WPA-PSK or WPA2-PSK). NWD-270N User’s Guide...
  • Page 41 Check the MAC addresses of your wireless clients (usually printed on a label on the bottom of the device). If there is an unknown MAC address you can remove it or reset the AP. NWD-270N User’s Guide...
  • Page 42 Chapter 3 Wireless LANs NWD-270N User’s Guide...

  • Page 43: Station Mode

    • On the Site Survey screen, you can connect to any available unsecured wireless network in range of the NWD-270N, or open the security settings screen for any secured wireless network in range. See Section 4.4 on page 47 for details.\...

  • Page 44: Before You Begin

    Profile Use this screen to add, delete, edit or activate a profile with a set of wireless and security settings. Adapter Use this screen to configure preamble type, enable power saving and use WiFi Protected Setup (WPS). NWD-270N User’s Guide...

  • Page 45: The Link Info Screen

    Network The SSID identifies the wireless network to which a wireless station is associated. Name (SSID) This field displays the name of the wireless device to which the NWD-270N is associated. AP MAC This field displays the MAC address of the AP or peer computer to which the Address NWD-270N is associated.

  • Page 46: Trend Chart

    (Kbps). Signal Strength The status bar shows the strength of the signal. The signal strength mainly depends on the antenna output power and the distance between your NWD-270N and the AP or peer computer. Link Quality The status bar shows the quality of wireless connection. This refers to the percentage of packets transmitted successfully.

  • Page 47: The Site Survey Screen

    This field shows whether data encryption is activated (WEP, WPA, WPA-PSK, WPA2, WPA2-PSK or 802.1x) or inactive (DISABLE). MAC address This field displays the MAC address of the wireless device. Surveyed at This field displays the time when the wireless device was scanned. NWD-270N User’s Guide...

  • Page 48: Security Settings

    4.4.1 Security Settings When you configure the NWD-270N to connect to a network with wireless security activated and the security settings are disabled on the NWD-270N, the screen varies according to the encryption method used by the selected network. 4.4.1.1 Security Type Selection When you choose to connect to a network that has security, you are presented with is a security selection screen.
  • Page 49 Pass Phrase Enter a passphrase of up to 32 case-sensitive printable characters. As you enter the passphrase, the NWD-270N automatically generates four different WEP keys and displays the first in the key field below. Refer to Section 3.3.1.1.1 on page 33 for more information.
  • Page 50 Click Exit to return to the Site Survey screen without saving. 4.4.1.4 WPA/WPA2 The screen that displays when you select WPA or WPA2 differs, depending on the EAP Type you select (TLS, PEAP or TTLS). Figure 35 Security Settings: WPA/WPA2 NWD-270N User’s Guide...
  • Page 51 Configure IEEE 802.1x security with various authentication methods in this screen. The procedure to configure 802.1x is different in Windows Vista. See Section 4.7 on page 61 for information on setting up your NWD-270N to use 802.1x in Vista. NWD-270N User’s Guide...
  • Page 52 Click Back to go to the Site Survey screen to select and connect to another network. Next Click Next to confirm your selections and advance to the Summary screen. Refer Section 4.4.2 on page Exit Click Exit to return to the Site Survey screen without saving. NWD-270N User’s Guide...

  • Page 53: Summary Screen

    NWD-270N cannot connect to a network. If you do not configure and activate a profile, each time you start the NWD-270N, the NWD- 270N uses the default profile to connect to any available network that has no security enabled.
  • Page 54 This field displays the channel number used by the profile. Security This field shows whether data encryption is activated (WEP, WPA, WPA-PSK, WPA2, WPA2-PSK or 802.1x) or inactive (DISABLE). Transmit Rate This field displays the transmission speed of the selected profile in megabits per second (Mbps). NWD-270N User’s Guide...

  • Page 55: Adding A New Profile

    Select an available wireless device in the Scan Info table and click Select, or enter the SSID of the wireless device to which you want to associate in this field manually. Otherwise, enter Any to have the NWD-270N associate to any AP or roam between any infrastructure wireless networks.
  • Page 56 Select an available wireless device in the table and click Select to add it to this profile. Whenever you activate this profile, the NWD-270N associates to the selected wireless network only. 2 If you select the Infrastructure network type in the previous screen, skip to step 3. If you select the Ad-Hoc network type in the previous screen, a screen displays as follows.
  • Page 57 4 The screen varies depending on the encryption method you select in the previous screen. The settings must be exactly the same on the AP or other peer wireless computers as they are on the NWD-270N. Refer to Section 5.4.1 on page 70 for detailed information on wireless security configuration.

  • Page 58: The Adapter Screen

    DESCRIPTION Adapter Setting Power Saving Select Fast Power Save to save power. This forces the NWD-270N to go to sleep Mode mode when it is not transmitting data. When you select Continuous Access Mode, the NWD-270N will never go to sleep mode.

  • Page 59: Wps: Pbc (Push Button Configuration)

    Section 4.6.3 on page 61). Save Click Save to save the changes to the NWD-270N and return to the Link Info screen. 4.6.1 WPS: PBC (Push Button Configuration) This screen allows you to use the WPS Push Button Configuration mode. See Section 3.4.1 on...

  • Page 60: Wps: Pin - Use This Device's Pin

    4.6.2 WPS: PIN - Use this Device’s PIN This screen allows you to use the WPS Personal Identification Number mode, by entering the NWD-270N’s unique PIN in the configuration utility of the other WPS-enabled device. See Section 3.4.2 on page 36 for more information.

  • Page 61: Wps: Pin - Use The Pin From The Ap Or Wireless Router

    4.7 Security Settings in Windows Vista When you use the NWD-270N in Windows Vista, the procedure for setting up WPA, WPA2 and 802.1x security settings is different from that of other operating systems (other security types are not affected).

  • Page 62: Using Peap In Vista

    Figure 50 Vista Security: Enter Credentials If you are not sure what to enter, contact your network administrator. 7 Click OK. The Enter Credentials screen disappears and the NWD-270N tries to connect to the network. The ZyXEL utility’s Link Info screen displays, showing the connection status (see Section 4.3 on page...

  • Page 63: Using Tls In Vista

    If you do not have the right certificate, or are not sure which certificate you should use, contact your network administrator. 7 Click OK. The Select Certificate screen disappears and the NWD-270N tries to connect to the network. The ZyXEL utility’s Link Info screen displays, showing the connection status (see Section 4.3 on page...
  • Page 64 Chapter 4 Station Mode NWD-270N User’s Guide...

  • Page 65: Ap Mode

    AP network set up. Figure 53 AP Network Example . Here, the NWD-270N is installed on computer A and set to operate in access point mode. Computer A provides an Internet connection to the wireless LAN, so wireless stations B and C can access the Internet.

  • Page 66: What You Can Do In This Section

    See Section 5.4 on page 69 for details. • On the MAC Filter screen, you can configure the NWD-270N to give exclusive access to devices or exclude specific devices from connecting to the AP. See Section 5.5 on page 73 for details.

  • Page 67: Before You Begin

    To bridge your wired and wireless network using the NWD-270N, the following requirements must be met: • The NWD-270N must be installed on a computer connected to the wired network. • Either bridge the two interfaces (wireless and wired) on the computer (using the Configuration screen) or configure network sharing.

  • Page 68: The Link Info Screen

    Table 21 Link Info LABEL DESCRIPTION Status SSID This field displays the name that identifies your NWD-270N in the wireless LAN network. Current Chan- This field displays the radio channel the NWD-270N is currently using. Transmission This field displays the current transmission rate of the NWD-270N in megabits per Rate second (Mbps).

  • Page 69: The Configuration Screen

    AP, it is the weakest of all wireless security. Anyone with a basic sniffer program will be able to detect the channel. Wireless This displays a list of available wireless modes. As of this writing, the NWD-270N Mode only supports 2.4 GHz.

  • Page 70: Security Settings

    Cancel Click to discard the changes. 5.4.1 Security Settings When you configure the NWD-270N to act as an AP and wireless security is activated, the Configuration screen varies according to the encryption method used by your network. 5.4.1.1 Disable This option indicates that no security services are enabled. Anyone within range of your AP can connect to it without having to enter a pre-shared key.
  • Page 71 If you select this transmit key option, enter a passphrase of up to 32 case-sensi- tive printable characters. As you enter the passphrase, the NWD-270N automatically generates four differ- ent transmit keys and displays the first in the key field below.
  • Page 72 Type a pre-shared key (same as the AP or peer device) of between 8 and 63 case- sensitive ASCII characters (including spaces and symbols) or 64 hexadecimal characters. Save Click to save the changes. Cancel Click to discard the changes. NWD-270N User’s Guide...

  • Page 73: The Mac Filter Screen

    Chapter 5 AP Mode 5.5 The MAC Filter Screen The MAC Filter screen allows you to configure the NWD-270N to give exclusive access to devices (Accept) or exclude devices from connecting to the NWD-270N (Reject). The MAC address is assigned at the factory and consists of six pairs of hexadecimal characters, for example, 00:A0:C5:00:00:02.
  • Page 74 Chapter 5 AP Mode NWD-270N User’s Guide...

  • Page 75: Maintenance

    (or “kernel”) level. Doing so could irreparably damage your installation. 6.1.3 Before You Begin • Disconnect the NWD-270N if you are going to uninstall or upgrade the ZyXEL utility, save your work in any other open programs, and then close them. NWD-270N User’s Guide...

  • Page 76: The About Screen

    Chapter 6 Maintenance 6.2 The About Screen The About screen displays driver and utility version numbers of the NWD-270N. To display the screen as shown below, click the About ( ) button. Figure 61 About The following table describes the read-only fields in this screen.

  • Page 77: Upgrading The Zyxel Utility

    5 Double-click on the setup program for the new utility to start the ZyXEL utility installation. 6 Insert the NWD-270N and check the version numbers in the About screen to make sure the new utility is installed properly. NWD-270N User’s Guide...
  • Page 78 Chapter 6 Maintenance NWD-270N User’s Guide...

  • Page 79: Troubleshooting And Specifications

    Troubleshooting and Specifications Troubleshooting (81) Product Specifications (85)

  • Page 81: Troubleshooting

    7.1 Power, Hardware Connections, and LEDs The NWD-270N does not turn on. None of the LEDs turn on. 1 Make sure the NWD-270N is correctly installed (refer to your Quick Start Guide). 2 Restart the computer to which the NWD-270N is attached.

  • Page 82: Accessing The Zyxel Utility

    7.2 Accessing the ZyXEL Utility I cannot access the ZyXEL Utility 1 Make sure the NWD-270N is properly inserted and the LEDs are on. Refer to the Quick Start Guide for information on how to properly connect the NWD-270N. 2 Use the Device Manager to check for possible hardware conflicts. Click Start >...
  • Page 83 In Ad-Hoc Mode • Verify that the peer computer(s) is turned on. • Make sure the NWD-270N computer and the peer computer(s) are using the same SSID and channel. • Make sure that the computer and the peer computer(s) share the same security settings.
  • Page 84 Chapter 7 Troubleshooting NWD-270N User’s Guide...

  • Page 85: Product Specifications

    H A P T E R Product Specifications Table 27 Product Specifications PHYSICAL AND ENVIRONMENTAL Product Name NWD-270N Wireless N-lite USB Adapter Interface USB 2.0 Standards IEEE 802.11b IEEE 802.11g IEEE 802.11n (Draft 2.0) Operating Frequency 2.4GHZ Antenna Type Chip...
  • Page 86 Microsoft Certification WHQL: Windows Vista (32- and 64-bit), Windows XP (32- and 64-bit), Windows 2000 SOFTWARE SPECIFICATIONS Device Drivers Windows Vista (32- and 64-bit) Windows XP (32- and 64-bit) Windows 2000 Mac OS X (10.3/10.4/10.5) WIRELESS FEATURES NWD-270N User’s Guide...
  • Page 87 Note: EAP-TTLS is not supported in Windows Vista Wireless QoS Wi-Fi Multi Media (WMM) Wi-Fi Protected Setup (WPS) Push button configuration Use device's PIN Use AP or Router's PIN Other WMM power-saving support Compatible with Windows Zero Configuration NWD-270N User’s Guide...
  • Page 88 Chapter 8 Product Specifications NWD-270N User’s Guide...

  • Page 89: Appendices And Index

    Appendices and Index The appendices provide general information. Some details may not apply to your NWD-270N. Setting Up Your Computer’s IP Address (87) Wireless LANs (91) Windows Wireless Management (105) Legal Information (127) Customer Support (131) Index (137)

  • Page 91: Appendix A Wireless Lans

    Intra-BSS traffic is traffic between wireless clients in the BSS. When Intra-BSS is enabled, wireless client A and B can access the wired network and communicate with each other. When Intra-BSS is disabled, wireless client A and B can still access the wired network but cannot communicate with each other. NWD-270N User’s Guide...
  • Page 92 An ESSID (ESS IDentification) uniquely identifies each ESS. All access points and their associated wireless clients within the same ESS must have the same ESSID in order to communicate. NWD-270N User’s Guide...
  • Page 93 (AP) or wireless gateway, but out-of-range of each other, so they cannot "hear" each other, that is they do not know if the channel is currently being used. Therefore, they are considered hidden from each other. NWD-270N User’s Guide...
  • Page 94 AP will fragment the packet into smaller data frames. A large Fragmentation Threshold is recommended for networks not prone to interference while you should set a smaller threshold for busy networks or networks that are prone to interference. NWD-270N User’s Guide...
  • Page 95 Use the dynamic setting to automatically use short preamble when all wireless devices on the network support it, otherwise the NWD-270N uses long preamble. The wireless devices MUST use the same preamble mode in order to communicate.
  • Page 96 Appendix A Wireless LANs Wireless security methods available on the NWD-270N are data encryption, wireless client authentication, restricting access by device MAC address and hiding the NWD-270N identity. The following figure shows the relative effectiveness of these wireless security methods available on your NWD-270N.
  • Page 97 EAP to interact with an EAP-compatible RADIUS server, an access point helps a wireless station and a RADIUS server perform authentication. The type of authentication you use depends on the RADIUS server and an intermediary AP(s) that supports IEEE 802.1x. . NWD-270N User’s Guide...
  • Page 98 However, PEAP only supports EAP methods, such as EAP-MD5, EAP-MSCHAPv2 and EAP-GTC (EAP-Generic Token Card), for client authentication. EAP-GTC is implemented only by Cisco. LEAP LEAP (Lightweight Extensible Authentication Protocol) is a Cisco implementation of IEEE 802.1x. NWD-270N User’s Guide...
  • Page 99 If the AP or the wireless clients do not support WPA2, just use WPA or WPA-PSK depending on whether you have an external RADIUS server or not. Select WEP only when the AP and/or wireless clients do not support WPA or WPA2. WEP is less secure than WPA or WPA2. NWD-270N User’s Guide...
  • Page 100 AP and does not need to go with the authentication process again. Pre-authentication enables fast roaming by allowing the wireless client (already connecting to an AP) to perform IEEE 802.1x authentication with another AP before connecting to it. NWD-270N User’s Guide...
  • Page 101 (PSK) must consist of between 8 and 63 ASCII characters or 64 hexadecimal characters (including spaces and symbols). 2 The AP checks each wireless client's password and allows it to join the network only if the password matches. NWD-270N User’s Guide...
  • Page 102 Enable without Dynamic WEP Key Open Enable with Dynamic WEP Key Enable without Dynamic WEP Key Disable Shared Enable with Dynamic WEP Key Enable without Dynamic WEP Key Disable TKIP/AES Enable WPA-PSK TKIP/AES Disable WPA2 TKIP/AES Enable WPA2-PSK TKIP/AES Disable NWD-270N User’s Guide...
  • Page 103 The angle of the beam determines the width of the coverage pattern. Angles typically range from 20 degrees (very directional) to 120 degrees (less directional). Directional antennas are ideal for hallways and outdoor point-to-point applications. NWD-270N User’s Guide...
  • Page 104 For a single AP application, place omni-directional antennas as close to the center of the coverage area as possible. For directional antennas, point the antenna in the direction of the desired coverage area. NWD-270N User’s Guide...

  • Page 105: Appendix B Windows Wireless Management

    P P E N D I X Windows Wireless Management This appendix shows you how to manage your NWD-270N using the Windows Vista and Windows XP wireless configuration tools. Windows Vista Take the following steps to connect to a wireless network using the Windows Vista wireless configuration tool (WLAN AutoConfig).
  • Page 106 If the network to which you want to connect does not display, see the section on setting up a connection manually on page 108. 3 If security is enabled, you may be prompted to enter your security key. NWD-270N User’s Guide...
  • Page 107 Appendix B Windows Wireless Management Figure 73 Vista: Enter Security Key Your computer tries to connect to the wireless network. Figure 74 Vista: Connecting If your computer has connected to the wireless network successfully, the following screen displays. NWD-270N User’s Guide...
  • Page 108 (if your network’s SSID is hidden, for example), take the following steps to configure your network connection manually 1 Click Set up a connection or network at the bottom of the Connect to screen. The following screen displays. NWD-270N User’s Guide...
  • Page 109 Select the type of security used by the network to which you want to connect. The types of available security shown depend on your computer’s wireless client. In this field, WPA(2)-Personal is the same as WPA(2)-PSK, and WPA(2)- Enterprise is the same as WPA(2) NWD-270N User’s Guide...
  • Page 110 Otherwise, click Connect to..In the window that displays, double-click the new network’s name to connect to the network. Setting Up An Ad-Hoc Network Take the following steps to set up a wireless connection between two computers in Windows Vista. NWD-270N User’s Guide...
  • Page 111 Figure 80 Vista: Ad-hoc Options 3 Enter the Network name (SSID) you want to use for your network. Select a Security type. If you are not sure what kind of security you want to use, click the Help me choose link. NWD-270N User’s Guide...
  • Page 112 Windows XP SP2 screen shots are shown unless otherwise specified. Click the help icon ( in most screens, move the cursor to the item that you want the information about and click to view the help. Activating Wireless Zero Configuration 1 Click Start > Control Panel and double-click Network Connections. NWD-270N User’s Guide...
  • Page 113 Figure 83 Windows XP SP2: Wireless Network Connection Status 4 The Wireless Network Connection Properties screen displays. Click the Wireless Networks tab. Make sure the Use Windows to configure my wireless network settings check box is selected. NWD-270N User’s Guide...
  • Page 114 Figure 84 Windows XP SP1: Wireless Network Connection Properties Figure 85 Windows XP SP2: Wireless Network Connection Properties If you see the following screen, refer to article 871122 on the Microsoft web site for information on starting WZC. NWD-270N User’s Guide...
  • Page 115 DESCRIPTION The NWD-270N is connected to a wireless network. The NWD-270N is in the process of connecting to a wireless network. The connection to a wireless network is limited because the network did not assign a network address to the computer.
  • Page 116 Figure 89 Windows XP SP1: Wireless Network Connection Status 3 Windows XP SP2: Click Refresh network list to reload and search for available wireless devices within transmission range. Select a wireless network in the list and click Connect to join the selected wireless network. NWD-270N User’s Guide...
  • Page 117 This denotes that this wireless network is your preferred network. Ordering your preferred networks is important because the NWD-270N tries to associate to the preferred network first in the order that you specify. Refer to the section on ordering the preferred networks for detailed information.
  • Page 118 If there is no security activated for the selected wireless network, a warning screen appears. Click Connect Anyway if wireless security is not your concern. Figure 92 Windows XP SP2: Wireless Network Connection: WEP or WPA-PSK NWD-270N User’s Guide...
  • Page 119 This denotes the wireless network is not available. Security Settings When you configure the NWD-270N to connect to a secure network but the security settings are not yet enabled on the NWD-270N, you will see different screens according to the authentication and encryption methods used by the selected network.
  • Page 120 This field is available only when the network use WEP encryption method and the The key is provided for me automatically check box is not selected. The key is If this check box is selected, the wireless AP assigns the NWD-270N a key. provided for me automatically This is a If this check box is selected, you are connecting to another computer directly.
  • Page 121 Click Cancel to leave this screen without saving any changes you may have made. Authentication Properties Select an EAP authentication type in the Wireless (network) properties: Authentication screen and click the Properties button to display the following screen. NWD-270N User’s Guide...
  • Page 122 Select the check box to automatically reconnect to the network (without re- Reconnect authentication) if the wireless connection goes down. Click OK to save your changes. Cancel Click Cancel to leave this screen without saving any changes you may have made. NWD-270N User’s Guide...
  • Page 123 Click OK to save your changes. Cancel Click Cancel to leave this screen without saving any changes you may have made. Ordering the Preferred Networks Follow the steps below to manage your preferred networks. NWD-270N User’s Guide...
  • Page 124 Properties and the Wireless Networks tab to open the screen as shown. Figure 99 Windows XP SP1: Wireless Networks: Preferred Networks 2 Whenever the NWD-270N tries to connect to a new network, the new network is added in the Preferred networks table automatically. Select a network and click Move up or Move down to change it's order, click Remove to delete it or click Properties to view NWD-270N User’s Guide...
  • Page 125 Appendix B Windows Wireless Management the security, authentication or connection information of the selected network. Click Add to add a preferred network into the list manually. NWD-270N User’s Guide...
  • Page 126 Appendix B Windows Wireless Management NWD-270N User’s Guide...

  • Page 127: Appendix C Legal Information

    ZyXEL Communications Corporation. Published by ZyXEL Communications Corporation. All rights reserved.
  • Page 128 • This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. • IEEE 802.11b or 802.11g operation of this product in the U.S.A. is firmware-limited to channels 1 through 11. 注意 ! 依據 低功率電波輻射性電機管理辦法 第十二條 經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用 者均不得擅自變更頻率、加大功率或變更原設計之特性及功能。 第十四條 低功率射頻電機之使用不得影響飛航安全及干擾合法通信；經發現 有干擾現象時，應立即停用，並改善至無干擾時方得繼續使用。 前項合法通信，指依電信規定作業之無線電信。低功率射頻電機須忍 受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。 本機限在不干擾合法電臺與不受被干擾保障條件下於室內使用。 減少電磁波影響，請妥適使用。 NWD-270N User’s Guide...
  • Page 129 ZyXEL) and the customer will be billed for parts and labor. All repaired or replaced products will be shipped by ZyXEL to the corresponding return address, Postage Paid. This warranty gives you specific legal rights, and you may also have other rights that vary from country to country. NWD-270N User’s Guide...
  • Page 130 Appendix C Legal Information Registration Register your product online to receive e-mail notices of firmware upgrades and information at www.zyxel.com. NWD-270N User’s Guide...

  • Page 131: Appendix D Customer Support

    • Sales E-mail: sales@zyxel.com.tw • Telephone: +886-3-578-3942 • Fax: +886-3-578-2439 • Web: www.zyxel.com, www.europe.zyxel.com • FTP: ftp.zyxel.com, ftp.europe.zyxel.com • Regular Mail: ZyXEL Communications Corp., 6 Innovation Road II, Science Park, Hsinchu 300, Taiwan Costa Rica • Support E-mail: soporte@zyxel.co.cr • Sales E-mail: sales@zyxel.co.cr •...
  • Page 132 Appendix D Customer Support • Regular Mail: ZyXEL Communications, Czech s.r.o., Modranská 621, 143 01 Praha 4 - Modrany, Ceská Republika Denmark • Support E-mail: support@zyxel.dk • Sales E-mail: sales@zyxel.dk • Telephone: +45-39-55-07-00 • Fax: +45-39-55-07-07 • Web: www.zyxel.dk • Regular Mail: ZyXEL Communications A/S, Columbusvej, 2860 Soeborg, Denmark Finland •...
  • Page 133 • Regular Mail: ZyXEL Malaysia Sdn Bhd., 1-02 & 1-03, Jalan Kenari 17F, Bandar Puchong Jaya, 47100 Puchong, Selangor Darul Ehsan, Malaysia North America • Support E-mail: support@zyxel.com • Support Telephone: +1-800-978-7222 • Sales E-mail: sales@zyxel.com • Sales Telephone: +1-714-632-0882 • Fax: +1-714-632-0858 • Web: www.zyxel.com NWD-270N User’s Guide...
  • Page 134 Appendix D Customer Support • Regular Mail: ZyXEL Communications Inc., 1130 N. Miller St., Anaheim, CA 92806- 2001, U.S.A. Norway • Support E-mail: support@zyxel.no • Sales E-mail: sales@zyxel.no • Telephone: +47-22-80-61-80 • Fax: +47-22-80-61-81 • Web: www.zyxel.no • Regular Mail: ZyXEL Communications A/S, Nils Hansens vei 13, 0667 Oslo, Norway Poland •...
  • Page 135 • Sales E-mail: sales@zyxel.co.uk • Telephone: +44-1344-303044, 08707-555779 (UK only) • Fax: +44-1344-303034 • Web: www.zyxel.co.uk • FTP: ftp.zyxel.co.uk • Regular Mail: ZyXEL Communications UK Ltd., 11 The Courtyard, Eastern Road, Bracknell, Berkshire RG12 2XB, United Kingdom (UK) NWD-270N User’s Guide...
  • Page 136 Appendix D Customer Support NWD-270N User’s Guide...
  • Page 137 ID automatic connection dimensions automatic network scan 25, 53 disclaimer download driver version dynamic WEP key exchange Basic Service Set, See BSS EAP (Extensible Authentication Protocol) EAP Authentication NWD-270N User’s Guide...
  • Page 138 See IBSS Pairwise Master Key (PMK) 100, 102 infrastructure passphrase 33, 49, 71 Initialization Vector (IV) password installation PEAP 61, 62 interface peer computer 17, 56 Internet access physical specifications IP address power saving dynamic NWD-270N User’s Guide...
  • Page 139 93, 94 uninstalling the ZyXEL utility upgrading the ZyXEL utility important step user authentication utility installation utility version safety warnings Save power save power scan scan info search Vista 61, 63 Security security 32, 33, 45, 87 NWD-270N User’s Guide...
  • Page 140 RADIUS application example WPA2 34, 50, 61, 99 user authentication vs WPA2-PSK wireless client supplicant with RADIUS application example WPA2-Pre-Shared Key 34, 99 WPA2-PSK 34, 49, 72, 99, 100 application example WPA-PSK 35, 49, 72, 99, 100 application example NWD-270N User’s Guide...

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